Review of Acantholaimus Allgén, 1933 (Nematoda: Chromadoridae), a genus of marine free-living nematodes, with a tabular key to species

In: Nematology
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  • 1 Senckenberg Nature Research Society, Senckenberg am Meer, German Centre for Marine Biodiversity Research, Südstrand 44, 26382 Wilhelmshaven, Germany

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Acantholaimus (Nematoda: Chromadoridae) is considered to be one of the most abundant and species-rich genera of deep-sea free-living nematodes and has a world-wide distribution. To date, 50 Acantholaimus species are known globally, although in all the oceans many more undescribed species have been recorded. Local species diversity of the genus is often very high and may amount to several dozen species in one deep-sea locality. The present review summarises data on morphology (with illustrations), taxonomy, ecology, and biology of this genus. An emended genus diagnosis, a list of species with their known locations, and a tabular key to species are provided. Acantholaimus ewensis Platt & Zhang, n. syn. is proposed as a junior synonym of A. polydentatus Gerlach, .

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